I thought I could do it globaly for my whole TKLDev installation, but I will apply my git global profile to the Magento folder and try again.

Got this at break point:

fab-chroot build/root.patched --script conf.d/main
++ gh_releases magento/magento2
Usage: gh_releases.sh <user>/<repo>
Note: requires GITHUB_USER and GITHUB_USER_TOKEN
      environment variables to be set.
For debugging, set DEBUG=y.
 

I just set up a key, but that seems different (slightly) than a password token.  I'll work on that.

I couldn't specify the whole version-stretch-amd64 name

but

.bt-iso magento seems to be working.  
... but nope.

Now it is the Magento/Magento 2 credentials.  I will see if I can register there.

Fetching releases from github for "magento/magento2"...
[FATAL] Bad GitHub credentials
+ RELEASES=
/usr/share/fab/product.mk:535: recipe for target 'build/stamps/root.patched' failed
make: *** [build/stamps/root.patched] Error 1
FATAL [bt-iso]: build failed...
 

Should be a way to veil the keys but I need to see how.

This is a placeholder for now.

https://devdocs.magento.com/guides/v2.3/install-gde/prereq/connect-auth.html

Might be good to put a "input" call in the Make Scripts that prompt for

MAGEID:TOKEN  in the Curl command.

Something like (yes it would need the correct syntax):

(Set MageID:setmageid)  (set MageTOKEN:setmagetoken) 

The person running TKLDEV would set that as part of their process.

I think this is working directly from Mirror ISO.
Slow process on this one.  I'll check when I get home.  Not very verbose.

Dir in another session shows it complete, but I think my session did go to sleep.

All good.